No, federal income tax does not go in the trading and profit and loss account as an operating expense. It appears on the income statement, but below the line where operating profit is measured, because it is treated as a share of profit paid to the government rather than a cost of earning that profit. Under 26 U.S.C. ยง 275, federal income tax is explicitly non-deductible as a business expense.1Office of the Law Revision Counsel. 26 USC 275 – Certain Taxes Several other business taxes do belong in the trading or P&L sections, and drawing that line correctly is what this comes down to.
Why Income Tax Sits Below the Operating Line
Operating expenses share one trait: the business incurs them to earn revenue. Wages keep employees working, inventory purchases create products to sell, rent provides a place to operate. Income tax fails that test. A company only owes income tax after it has already earned a profit, which makes the tax a consequence of success rather than a cost of achieving it.
Federal law reinforces the distinction. Section 275 prohibits businesses from deducting federal income taxes when calculating taxable income.1Office of the Law Revision Counsel. 26 USC 275 – Certain Taxes The logic is circular by design: allowing a deduction for income tax would reduce the income on which the tax is based, which would reduce the tax, which would change the income again. Congress cut the knot by barring the deduction. For C corporations, the tax itself is a flat 21 percent of taxable income.2Office of the Law Revision Counsel. 26 USC 11 – Tax Imposed
Because income tax is neither an operating cost nor deductible, accountants treat it as a distribution of profit. It is the government’s share, carved out after the business has finished measuring how well it performed.
Where Income Tax Actually Appears
Under U.S. Generally Accepted Accounting Principles, income tax expense does appear on the income statement, just not in the operating section. The sequence runs like this. Revenue minus cost of goods sold gives gross profit. Subtracting operating expenses gives operating profit. Adjusting for interest and other non-operating items produces pre-tax income. Only then is income tax expense deducted, arriving at net income after tax.
Some accounting frameworks, particularly those following UK or international conventions, use a separate statement called the Profit and Loss Appropriation Account to show how net profit gets divided among taxes, dividends, and retained earnings. The principle is identical either way. Income tax is not mixed in with the costs of running the business, and it appears only after operating performance has been fully measured. Analysts call this a “below the line” item because keeping it separate lets you compare how efficiently two companies operate without their tax positions distorting the picture.
On IRS Form 1120, which C corporations file, the tax computation happens on Schedule J. The form first calculates taxable income on page one, then Schedule J applies the 21 percent rate and accounts for credits to produce the total tax liability. The form mirrors the accounting: operating results first, tax second.
Taxes That Do Belong in the Trading and P&L Account
Plenty of other taxes qualify as ordinary and necessary business expenses under Section 162 of the Internal Revenue Code and appear directly in the operating sections of the financial statements.3Office of the Law Revision Counsel. 26 US Code 162 – Trade or Business Expenses
Taxes in the Trading Account
The trading account, or cost of goods sold section, captures every cost needed to bring inventory into a sellable condition. Customs duties and import tariffs paid on goods purchased overseas become part of inventory cost. Import $100,000 in raw materials and pay $15,000 in duties, and cost of goods sold reflects $115,000. Leaving duties out would overstate gross profit and understate the true cost of production.
Taxes in the Profit and Loss Account
Taxes tied to general operations rather than specific inventory go into the profit and loss section as administrative or overhead expenses. Common examples:
- Property taxes on business premises reduce net profit as a fixed operating cost, owed whether or not the business turns a profit that year.
- Employer payroll taxes, including the employer share of Social Security and Medicare (FICA) on employee wages, are deductible business expenses. They are costs of employing people, not a share of profit.
- Non-recoverable sales taxes paid on office supplies or equipment that cannot be reclaimed count as operating expenses.
The line between these taxes and income tax is simple. Property tax, payroll tax, and customs duties are owed whether the business makes money or loses money. Income tax only applies when there is profit to tax.
State Income Tax Is Treated Differently
Federal income tax is only part of the picture. Most states impose their own corporate income tax, with top rates ranging from 2 percent to 11.5 percent depending on the state. A handful have no corporate income tax at all, while others use gross receipts taxes or franchise taxes instead.
Unlike federal income tax, state and local income taxes paid by a business are generally deductible on the federal return. State income tax can legitimately appear as an operating expense on the profit and loss account for federal purposes, reducing federal pre-tax income. In practice, financial statements often show state income tax expense on the same line as federal income tax expense, but the deductibility difference matters when reconciling book income to federal taxable income.
Book Profit and Taxable Income Rarely Match
The net profit on the financial statements almost never matches taxable income on the return. Accounting rules and tax rules measure income differently, and the gap comes in two flavors.
Permanent Differences
Some items appear on the books but never on the return, or vice versa. Interest earned on municipal bonds counts as income for accounting but is tax-exempt on the return. Fines and penalties go the other direction: they reduce book profit but are not deductible for tax. These permanent differences shift the effective tax rate above or below a straight 21 percent of book profit.
Temporary Differences
Other differences are timing issues. The total recognized over the life of an asset or liability ends up the same for books and taxes, but the year-by-year amounts diverge. Depreciation is the standard example: tax law often allows faster write-offs than accounting rules do, so book profit may run higher than taxable income in early years and lower later. These timing mismatches create deferred tax liabilities (future tax owed) or deferred tax assets (future tax benefits), both of which sit on the balance sheet.
C corporations reconcile these differences on Schedule M-1 or Schedule M-3 of Form 1120, which walks from book income to taxable income line by line. Typical adjustments include depreciation differences, partially deductible meals, officer life insurance premiums, and accrued bonuses not yet paid.
Recording the Income Tax Provision
For C corporations, the income tax provision is the accounting entry that records the expected tax obligation. The estimate uses the 21 percent federal rate (plus any applicable state rates) applied to pre-tax income and adjusted for known book-tax differences. The entry debits income tax expense on the income statement and credits a tax payable account on the balance sheet.
Tax payable sits on the balance sheet as a current liability until the company sends payment to the IRS. When temporary differences exist, part of the provision flows into deferred tax liability or deferred tax asset accounts instead, reflecting future tax consequences of transactions already recorded on the books.
Pass-Through Entities Look Different
Everything above assumes a C corporation. Partnerships, S corporations, and single-member LLCs are treated differently, and the treatment changes what shows up on the income statement.
These “pass-through” entities do not pay federal income tax at the entity level. Section 701 of the Internal Revenue Code states that a partnership is not subject to income tax; the partners themselves owe tax on their individual returns.4Office of the Law Revision Counsel. 26 USC 701 – Partners, Not Partnership, Subject to Tax A partnership’s profit and loss statement typically shows no income tax expense at all. The bottom line is the full net profit, which is then allocated to partners under the partnership agreement. Each partner receives a Schedule K-1 reporting their share and handles the tax personally on Form 1040.
S corporations work similarly. The entity files an informational return on Form 1120-S but pays no federal income tax. Shareholders report their allocated share on personal returns. One practical wrinkle: the IRS requires that shareholder-employees receive a reasonable salary subject to payroll taxes before taking additional profit distributions.
State treatment varies. Some states impose entity-level taxes even on pass-through businesses, and many now allow pass-through entities to elect to pay state income tax at the entity level as a workaround for the federal cap on state and local tax deductions. Where an entity-level state tax applies, that expense can appear in the P&L section even though no federal income tax expense does.